Замыкание со случайной задержкой

1package main2 3import (4	"fmt"5	"math/rand"6	"time"7)8 9func main() {10	remoteCall := func() int {11		time.Sleep(time.Duration(rand.Intn(3)) * time.Second)12		return 4213	}14	task := func() {15		result := remoteCall()16		fmt.Println(result)17	}18	task()19}